Division Purity:
United Kingdom
| Trans-resveratrol | Not less than 99 % |
| Total by-products (related substances) | Not more than 0,5 % |
| Any single related substance | Not more than 0,1 % |
| Lead | Not more than 1 ppm |
| Mercury | Not more than 0,1 ppm |
| Cadmium | Not more than 0,5 ppm |
| Arsenic | Not more than 1 ppm |
| Loss on drying | Not more than 0,5 % |
| Sulphated ash | Not more than 0,1 % |
| Diisopropylamine | Not more than 50 mg/kg |